METHODS USEFUL FOR RECOVERING POLYMERS FROM ELECTRONIC AND OTHER WASTES
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United States of America Patent
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Jan 26, 2017
app pub date -
May 19, 2016
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Nov 19, 2013
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Abstract
Systems and methods for purifying or recycling polymeric materials such as polycarbonates are disclosed. Such methods may include performing two or more extractions using differing solvent media to remove non-target materials and attain a purified composition of a target polymer. Other steps including dissolution, precipitation, filtration, and/or centrifugation may also be performed in the methods of the present invention.
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